No open health-based violations on EPA record in the last 10 years.
Serves about 4,833 people (2,002 connections) with groundwater from its own wells.
From EPA's record for AZ0409015. PurityMap is independent of City of Holbrook.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From July 2023 | Groundwater Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2025 to October 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 18 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-18 to 2025-10-01 | UCMR5 Analytical Results: HOLBROOK CITY OF (AZ0409015) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →City of Holbrook's phone number on EPA record is 928-524-6225. Its mailing address is 465 N 1ST AVE, HOLBROOK, AZ 86025.
According to EPA's record, City of Holbrook uses groundwater from its own wells.
EPA's record shows 1 health-based violation for City of Holbrook in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 54 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in City of Holbrook's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for City of Holbrook. Its phone number on EPA record is 928-524-6225. Its mailing address on EPA record is 465 N 1ST AVE, HOLBROOK, AZ 86025. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.